They walked across the Platform, through the city of living Buildings. The walls were gleaming white surfaces, neither hot nor cold, and pierced by sharp-edged doorways and windows.
Mina ran her hand across one smooth wall. Through an open door, inside the building, could be glimpsed signs of humanity: a bunk bed made of wood hauled up from the plain, a hearth, a cooking pot, cupboards and heaps of blankets and clothes, and outside a bucket to catch the rain. ‘This place is so strange. We build things of stone, of concrete, or wood. But this—’
‘We didn’t build these structures at all. The Buildings grew here. We don’t even know what they are made of – we call it Construction Material. That may not even be a human invention. They bud from units we call Flowers, and soak up the light from the storms. Like the Weapons, the Buildings are technology gone wild, made things modified by time.’
‘It all feels new, although I suppose it’s actually very old. Whereas Foro feels old. All that lichen-encrusted stone! It’s like a vast tomb . . .’
But Telni knew that the town she called Foro was built on the ruins of a city itself called New Foro, devastated during the wars he remembered watching as a boy. He had naively expected the Shelf folk to be full of stories of that war when they came here. But the war was fifteen Platform years over, more than two hundred and fifty Shelf years, and what was a childhood memory to Telni was long-dead history to Mina.
‘Is it true you feed your dead to the Buildings?’ She asked this with a kind of frisson of horror.
‘We wouldn’t put it like that . . . They do need organic material. In the wild, you know, down on the Lowland, they preyed on humans. We do let them take our corpses. Why not?’ He stroked a wall himself. ‘It means the Buildings are made of us, our ancestors. Sometimes people have to die inside a Building. The Weapon that rules the Platform decrees it.’
‘Why?’
‘It seems to be studying Effigies. It thinks that the Construction Material of which Buildings are made excludes Effigies. Some of us are born inside Buildings, so no Effigy can enter us then. Others die within a Building, a special one we call the Morgue, in an attempt to trap the Effigies when they are driven out of their bodies. My own great-aunt died recently, and had to be taken inside the Morgue, but no Effigy was released.’
‘It seems very strange to us,’ Mina said cautiously. ‘To Shelf folk, I mean. That here you are living out your lives on a machine, made by another machine.’
‘It’s not as if we have a choice,’ Telni said, feeling defensive. ‘We aren’t allowed to leave.’
She looked down at her feet, which were clad in sensible leather shoes – not spindling hide like Telni’s. ‘I could tell that a machine built this place. It lacks a certain humanity.’ She glanced at him uncertainly. ‘Look, I’m speaking as a Philosopher. I myself am studying geology. The way time stratification affects erosion, with higher levels wearing away faster than the low, and the sluggish way rivers flow as they head down into the red . . . All this is a manifestation of depth, you see, depth that pivots into time. On the Shelf we all grew up on a cliff-top, over all that depth. But here we are suspended in the air on a paper-thin sheet! Whatever the intentions of the Weapon that governs you, it doesn’t feel safe. A human designer would never have done it like this.’
‘We live as best we can.’
‘I’m sure.’
‘I’ll show you,’ he said with a dash of defiance.
He took her to the very centre of the Platform, and the wheel that turned as always, drawn by teams of patient spindlings as they laboured to draw up supplies from the plain below.
MinaAndry patted the necks of the plodding beasts. The cargo jockeys, unloading buckets and pallets of supplies drawn up from the Lowland, stared at her curiously.
She said, ‘How charming these beasts are! You know that on the Shelf they were driven to extinction during the Creationist-Mechanist Wars. We are slowly restocking with animals drawn up from the Lowland herds, but it’s ferociously expensive . . .’
Something about the way she patted and stroked the tall, elegant creatures moved Telni deep inside. But he had to pull her aside when he saw a spindling was ready to cough up its faeces. Mina was astonished at the sight.
He took Mina’s hand and led her to the centre of the Hub, close to the great hatch in the floor of the Platform, which revealed the goods-laden cables that dangled down to the Lowland far below.
Mina squealed and drew back. ‘Oh! I’m sorry. Vertigo – what a foolish reaction that is! Although it proves my point about the uncomfortable design.’
He pointed down through the hole. ‘I brought you here to see my own work. I earn my living through my studies with an apothecary. But this is my passion . . .’
Holding tight to the rail, pushing a stray strand of hair back from her face, she peered down through the floor. From here, Telni’s cradles of pendulums, of bobs and weights and simple control mechanisms, were clearly visible, attached in a train along one of the guide ropes that tethered the Platform to the Lowland plain.
‘Pendulums?’
‘Pendulums. I time their swing. From here I can vary the length and amplitude . . .’ He showed her a rigging-up of levers he had fixed above the tether’s anchor. ‘Sometimes there’s a snag, and I go down in a harness, or send one of the cargo jockeys.’
‘How do you time them?’
‘I have a clock the Weapon gave me. I don’t understand how it works,’ he said, and that admission embarrassed him. ‘But it’s clearly more accurate than any clock we can make. I have the pendulums spread out over more than a quarter of a kilometre. There’s no record of anybody attempting to make such measurements over such a height difference. And by seeing how the period of the pendulums vary with height, what I’m trying to measure is—’
‘The stratification of time. The higher up you raise your pendulums, the faster they will swing.’ She smiled. ‘Even a geologist understands that much. Isn’t it about five per cent per metre?’
‘Yes. But that’s only a linear approximation. With more accurate measurements I’ve detected an underlying curved function . . .’ The rate at which time flowed faster, Telni believed, was actually inversely proportional to the distance from the centre of Old Earth. ‘It only looks linear, simply proportional to height, if you pick points close enough together that you can’t detect the curve. And an inverse relationship makes sense, because that’s the same mathematical form as the planet’s gravitational potential, and time stratification is surely some kind of gravitational effect . . .’ He hoped this didn’t sound naive. His physics, based on philosophies imported from Foro centuries ago with the Platform’s first inhabitants, was no doubt primitive compared to the teachings Mina had been exposed to.
Mina peered up at a sky where a flock of stars, brightly blueshifted, wheeled continually around an empty pole. ‘I think I understand,’ she said. ‘My mathematics is rustier than it should be. That means that the time distortion doesn’t keep rising on and on. It comes to some limit.’
‘Yes! And that asymptotic limit is a distortion factor of around three hundred and twenty thousand – compared to the Shelf level, which we’ve always taken as our benchmark. So one year here corresponds to nearly a third of a million years, up there in the sky.’
She looked up in wonder. ‘It is said that nearly ten thousand years have elapsed since the last Formidable Caress. An interval that spans all the history we know. But ten thousand years here—’
‘Corresponds to about three billion years there. In the sky. We are falling into the future, Mina! And if you study the sky, as some do, you can see the working-out of time on a huge scale. A year up there passes in a mere hundred seconds down here, and we see the starscape march to that pace. And even as the sky turns, the stars in their flight spark and die, they swim towards and away from each other . . . We live in a great system of stars, which we se
e as a band across the sky. Some say there are other such systems, and that they too evolve and change.
‘And some believe that once Old Earth was a world without this layering of time, a world like many others, perhaps, hanging among the stars. Its people were more or less like us. But Old Earth came under some kind of threat. And so the elders pulled a blanket of time over their world and packed it off to the future: “Old Earth is a jar of time, stopped up to preserve its children” – that’s how it has been written.’
‘That’s all speculation.’
‘Yes. But it would explain such a high differential of perceived time. I’m always trying to improve my accuracy. The pendulums need to be long enough to give a decent period, but not too long or else the time stratification becomes significant even over the length of the pendulum itself, and the physics gets very complicated—’
She slipped her hand into his. ‘It’s a wonderful discovery. Nobody before, maybe not since the last Caress, has worked this out before.’
He flushed, pleased. But something made him confess, ‘I did need the Weapon’s clock to measure the effects sufficiently accurately. And the Weapon set me asking questions about time in the first place.’
‘It doesn’t matter what the Weapon did. This is your work. You should be happy.’
‘I don’t feel happy,’ he blurted.
She frowned. ‘Why do you say that?’
Suddenly he was opening up to her in ways he’d never spoken to anybody else. ‘Because I don’t always feel as if I fit. As if I’m not like other people.’ He looked at her doubtfully, wondering if she would conclude he was crazy. ‘Maybe that’s why the Machine has been drawn to me since the day I was born. And maybe that’s why I’m turning out to be a good Philosopher. I can look at the world from outside, and see patterns others can’t. Do you ever feel like that?’
Still holding his hand, she walked him back to the wheel and stroked a spindling’s stubby mane, evidently drawing comfort from the simple physical contact. ‘Sometimes,’ she said. ‘Maybe everybody does. But the world is as it is, and you just have to make the best of it. Do you get many birds on this island?’
The question surprised him. ‘Not many. Just caged songbirds. Hard for them to find anywhere to nest.’
‘I ask because I used to watch birds as a child. I’d climb up to a place we call the Attic . . . The birds use the time layers. The parents will nest at some low level, then go gathering food higher up. They’ve worked out they can take as long as they like, while the babies, stuck in slow time, don’t get too hungry and are safe from the predators. Of course, the parents grow old faster, sacrificing their lives for their chicks.’
‘I never saw anything like that. I never got the chance.’ He shook his head, suddenly angry, resentful. ‘Not on this island in the sky, as a servant of some machine. Sometimes I hope the next Caress comes soon and smashes everything up.’
She took both his hands and smiled at him. ‘I have a feeling you’re going to be a challenge. But I like challenges.’
‘You do?’
‘Sure. Or I wouldn’t be here, spending a month with a bunch of old folk while seventeen months pass at home. Think of the parties I’m missing!’
His heart hammered, as if he had been lifted up into the blue. ‘I’ve only known you hours,’ he said. ‘Yet I feel—’
‘You should return to your work.’ The familiar child’s voice was strange, cold, jarring.
Telni turned. The Weapon was here, hovering effortlessly over the hole in the floor. His tethered boy stood some metres away, tense, obviously nervous of the long drop. The spindlings still turned their wheel, but the cargo jockeys stood back, staring at the sudden arrival of the Weapon, the maker and ruler of their world.
Telni’s anger flared. He stepped forward towards the child, fists clenched. ‘What do you want?’
‘We have come to observe the formal congress this evening. The Philosophers from Shelf and Platform. There are many questions humans can address that we—’
‘Then go scare all those old men and women. Leave me alone.’ Suddenly, with Mina at his side, he could not bear to have the Weapon in his life once more, with its strange ageless boy on his umbilical. ‘Leave me alone, I say!’
Powpy turned to look at Mina. ‘She will not stay here. This girl, MinaAndry. Her home is on the Shelf. Her family, the Andry-Feri, is an ancient dynasty, with a lineage reaching back almost to the last Caress. She has responsibilities, to bear sons and daughters. That is her destiny. Not here.’
‘I will stay if I wish,’ Mina said. She was trembling, Telni saw, evidently terrified of the Weapon, this strange, ancient, wild machine from the dark Lowland. Yet she was facing it, answering it back.
Telni found himself snarling, ‘Maybe she’ll bear my sons and daughters.’
‘No,’ said the boy.
‘What do you mean, no?’
‘She is not suitable for you.’
‘She’s a scholar from Foro! She’s from the stock you brought here to populate the Platform in the first place!’
‘It is highly unlikely that she has an Effigy. Few in her family do. Your partner should have an Effigy. That is why—’
‘Selective breeding,’ Mina gasped. ‘It’s true. This machine really is breeding humans like cattle . . .’
‘I don’t care about Effigies!’ Telni yelled. ‘I don’t care about you and your stupid projects.’ He stalked over to the boy, who stood trembling, clearly afraid, yet unable to move from the spot.
‘Telni, don’t,’ Mina called.
The boy said tremulously, ‘Already you have done good and insightful work, which—’
Telni struck, a hard clap with his open hand to the side of the boy’s head. Powpy went down squealing.
Mina rushed forward and pushed herself between Telni and the boy. ‘What have you done?’
‘He, it – all my life—’
‘Is that this boy’s fault? Oh, get away, you fool.’ She knelt down and cradled the child’s head on her lap. With the umbilical still dangling from the back of his neck, Powpy was crying, in a strange, contained way. ‘He’s going to bruise. I think you may have damaged his ear. And his jaw – no, child, don’t try to talk.’ She turned to the Weapon, which hovered impassively. ‘Don’t make him speak for you again. He’s hurt.’
Telni opened his hands. ‘Mina, please—’
‘Are you still here?’ she snarled. ‘Go get help. Or if you can’t do that, just go away. Go!’
And he knew he had lost her, in that one moment, with that one foolish blow. He turned away and headed towards the Platform’s hospital to find a nurse.
He would not see the Weapon again for two decades.
The little boy walked into Telni’s cell, trailing a silvery rope from the back of his neck.
Telni was huddled up in his bunk, a spindling-skin blanket over his body. Though feverish, Telni was shivering: drying out from the drink, and not for the first time. He scowled at the boy. ‘You again.’
‘Be fair,’ the boy said. ‘We have not troubled you for twenty years.’
‘Not twenty for you.’ His figuring was cloudy. ‘Down on Lowland, less than a year—’
‘This boy is not yet healed.’
Telni saw the boy’s face was distorted on the right-hand side. ‘I apologise.’ He sat up. ‘I apologise to you – what in the blue was your name?’
‘Powpy.’
‘I apologise to you, Powpy. Not to the thing that controls you. Where is it, by the way?’
‘It would not fit through the door.’
Telni lay back and laughed.
‘We did not expect to find you here.’
‘In the drunk tank? Well, I got fired by the apothecary for emptying her drugs cabinet once too often. So it was the drink for me.’ He patted his belly. ‘At least it’s
putting fat on my bones.’
‘Why this slow self-destruction?’
‘Call it an experiment. I’m following in my father’s footsteps, aren’t I? After all, thanks to you, I have no more chance of happiness, of finding meaning in my life, than he did. And besides, it’s all going to finish in a big smash soon, isn’t it? As you smart machines no doubt know already.’
It didn’t respond to that immediately. ‘You never had a wife. Children.’
‘Sooner no kids at all than to breed at your behest.’
‘You have long lost contact with MinaAndry.’
‘You could say that.’ When the month-long tour of the Shelf Philosophers was concluded, she had gone home with them to continue her interrupted life on Foro. Since then, the accelerated time of the Shelf had whisked her away from him for ever. ‘After – what, three hundred years up there, more? – she’s dust, her descendants won’t remember her, even the language she spoke will be half-forgotten. The dead get deader, you know, as every trace of their existence is expunged. That’s one thing life on Old Earth has taught us. What do you want, anyway?’
‘Your research into the Formidable Caress.’
‘If you can call it research.’
‘Your work is good, from what we have seen of that portion you have shared with other scholars. You cannot help but do good work, Telni. The curiosity I saw burning in that ten-year-old boy, long ago, is still bright.’
‘Don’t try to analyse me, you – thing.’
‘Tell me what you have discovered . . .’
He could not hold back what he had learned, he found. At least the telling distracted him from his craving for drink.
After his discovery of the huge rate at which the inhabitants of Old Earth were plummeting into the future of the universe, Telni had become interested in spans of history. On the Shelf, written records went back some four thousand years of local time. These records had been compiled by a new civilisation rising from the rubble of an older culture, itself wrecked by a disaster known as the Formidable Caress, thought to have occurred some six thousand years before that.
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